The sting is harmless. It could be the equivalent of a bee sting, depending on how you react. Emperor Scorpions don't usually sting, they mostly use their large claws to kill their prey. I've actually never seen an emperor use their stinger. That's definately not to say they don't use them, because I'm sure they do.

You can tell how dangerous the venom of a scorpion is by looking at the size of its claws. If it has tiny claws then the venom is very strong and it'll use that to catch food or defend itself. If it has big claws then the venom isn't as bad and it'll use them to catch food or defend itself.
Or so I'm told...

But, if its eyeballs look like they're just about to pop out of they're sockets then it's lethal! :lol: